package net.lz1998.pbbot.utils;



import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.servlet.http.HttpServletRequest;
import java.io.*;
import java.net.ConnectException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.Date;



/**
 * 通用工具类
 */
public class HttpsRequestUtils {
   private static Logger log = LoggerFactory.getLogger(HttpsRequestUtils.class);
   /**
    * 发送https请求
    * @param requestUrl 请求地址
    * @param requestMethod 请求方式（GET、POST）
    * @param outputStr 提交的数据
    * @return 返回微信服务器响应的信息
    */
   public static String httpsRequest(String requestUrl, String requestMethod, String outputStr) {
      try {
         // 创建SSLContext对象，并使用我们指定的信任管理器初始化
         TrustManager[] tm = { new MyX509TrustManager() };
         SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
         sslContext.init(null, tm, new java.security.SecureRandom());
         // 从上述SSLContext对象中得到SSLSocketFactory对象
         SSLSocketFactory ssf = sslContext.getSocketFactory();
         URL url = new URL(requestUrl);
         HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
         conn.setSSLSocketFactory(ssf);
         conn.setDoOutput(true);
         conn.setDoInput(true);
         conn.setUseCaches(false);
         // 设置请求方式（GET/POST）
         conn.setRequestMethod(requestMethod);
         conn.setRequestProperty("content-type", "application/x-www-form-urlencoded"); 
         // 当outputStr不为null时向输出流写数据
         if (null != outputStr) {
            OutputStream outputStream = conn.getOutputStream();
            // 注意编码格式
            outputStream.write(outputStr.getBytes("UTF-8"));
            outputStream.close();
         }
         // 从输入流读取返回内容
         InputStream inputStream = conn.getInputStream();
         InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
         BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
         String str = null;
         StringBuffer buffer = new StringBuffer();
         while ((str = bufferedReader.readLine()) != null) {
            buffer.append(str);
         }
         // 释放资源
         bufferedReader.close();
         inputStreamReader.close();
         inputStream.close();
         inputStream = null;
         conn.disconnect();
         return buffer.toString();
      } catch (ConnectException ce) {
         log.error("连接超时：{}", ce);
      } catch (Exception e) {
         log.error("https请求异常：{}", e);
      }
      return null;
   }

   public static String urlEncodeUTF8(String source){
      String result = source;
      try {
         result = java.net.URLEncoder.encode(source,"utf-8");
      } catch (UnsupportedEncodingException e) {
         e.printStackTrace();
      }
      return result;
   }
   public static int null2Int(Object s) {
      int v = 0;
      if (s != null) {
         try {
            v = Integer.parseInt(s.toString());
         } catch (Exception localException) {
         }
      }
      return v;
   }
   public static String getURL(HttpServletRequest request) {
      String contextPath = request.getContextPath().equals("/") ? "" : request.getContextPath();
      
      String url = request.getScheme() + "://" ;
      
      url += request.getServerName();
      if (null2Int(Integer.valueOf(request.getServerPort())) != 80) {
         
         url += ":" + null2Int(Integer.valueOf(request.getServerPort()));
         
         url += contextPath;
      } else {
         url = url + contextPath;
      }
      return url;
   }
   

    /**
     * 获取当前时间str，格式yyyyMMddHHmmss
     *
     * @return
     * @author guoyx
     */
    public static String getCurrentDateTimeStr(Date time)
    {
        SimpleDateFormat dataFormat = new SimpleDateFormat("yyyyMMddHHmmss");
        if (time != null ) {
            return dataFormat.format(time);
        }else {
            return dataFormat.format(new Date());
        }

    }
   
}